docs: def port(port):
          """
          Port validator
  
          :param port: Port to validate (1 - 65535)
          :return: Port passed in (if valid)
          :raises ArgumentTypeError if port is not valid
          """
          value = int(port)
          if value <= 0 or value > 65535:
              raise argparse.ArgumentTypeError("%s must be between [1 - 65535]" % port)
          return value